Yeah I'd agree pest strips can be a REAL BAD IDEA. IF you for whatever reason feel absolutely compelled to use tham and cannot be talked out of playing that game od roulette at LEAST get some film cannisters, cut small holes in it and put in chunks fo the strip. Besides them being adhesive (bad idea to expose to) they are as Marla mentioned potentially quite hazardous.
There should be some instructions for the provent-a-mite on the can. Do nto spray on the snake - but the enclosure instead - use this in conjunction with soaking and keep away from all your other herps.
Good link on mites http://www.vpi.com/9VPITipsAndTechs/...SnakeMites.htm